Bucher Hydraulics is an international leading
provider of innovative hydraulic drive and control technologies for mobile
and industrial hydraulic applications.

Contributing high levels of technical expertise, we support our clients'
product development activities from the initial project phase to the
finished machine.

We can provide valuable help in creating very advanced machinery that
features stringent technical demands and exacting quality standards.

Product Portfolio

Mobile and Industrial Hydraulics

Hydraulics can be used wherever force and movement need to be controlled.

All development activities at Bucher are centered on customer requirements and thus often result in tailor-made components and systems. By optimizing the layout of the overall design, we can offer compact and economic hydraulic systems that simultaneously raise the performance level of the application.

Bucher Hydraulics creates systems that reveal the immense flexibility of modern hydraulics when combined with easy-to-use electronic controls.

Pumps

External gear pumps AP

The product range of Bucher Hydraulics includes single pumps 05-100-212-212HP-250-300-312HP (corresponding with the common group denominations: 05-1-2-2.5-3) and several combinations of double pumps, triple pumps, and so on, that can be assembled together according to versions of displacement, flanging, and auxiliary valves.

Advantages

High overall efficiency thanks to optimised hydraulic compensation

Design and materials that guarantee excellent technical specifications and long life service

Optimum quality/price ratio

Customised models can be built for specific applications:

Dedicated front covers to improve mechanical and life performances in case of radial/axial loads

Dedicated back covers with integrated circuits to control pressure and flow.

Models

Single pumps, unidirectional

Single pumps, reversible

Aluminium and cast iron versions

Double and triple pumps, unidirectional, in several configurations.

With integral flow or pressure control valve .

With outrigger bearing for axial and radial loads.

Applications

Tractors

Agricultural machines

Earth moving machines

Lift trucks

Construction machinery

Front loaders

Sweepers

Hydraulic hoists

Internal gear pumps QX

The QX pumps are the 5th generation of Bucher internal gear pumps, which have proven themselves in thirty years of service around the world. The straightforward and rugged construction guarantees long service life without the need for extensive maintenance. Tandem and multiple pumps are available worldwide in more than 1000 variants.

Advantages

High pressures

Low noise level

Long service life

Negligible flow and pressure

Insensitive to contamination

Applications

Plastics machinery

Waste compactors

Machine tools

Hydraulic presses

Diecasting maschines

Lift/elevator drives

Hydraulic power units

Lift trucks

Internal Gear Pumps QXEH – up to 280 bar with One Gear Stage

The QXEH series consists of single-stage pumps for both constant and variable speeds. Thanks to the use of high-precision gear parts with a pinion shaft (pinion and shaft as one component), extremely low pulsation levels are produced even at low speeds. In highly dynamic servo drives with reversing operation, the QXEH pumps offer maximum reliability.

In the overall product portfolio of QX internal gear units, the QEXH – as a single-stage pump with a maximum operating pressure of 280 bar – is positioned between pressure ranges 2 and 3 of the QX internal gear pumps.

Advantages

Compact, non-compensated design

Very low noise levels

Pressure and flow pulsations are minimal, thanks to pinion-shaft technology

Field-proven in both constant- and variable-speed drives

First-rate reliability at both high and low speeds and in reversing operation

Long service life even under highly cyclical loading

Applications

Hydraulic power units in general

Plastics-processing machinery

Pressure die-casting machines

Hydraulic presses, etc.

Wind-power plants

Internal Gear Unit QXM

The QXM drive unit can be used in open- and closed-loop hydrostatic drives, and can operate both as a pump and as a motor. The QXM works as a pump to lift the load and it can recover energy when the load is being lowered. Used as a bi-directional pump / motor (four-quadrant operation), the unit can control the complete motion cycle of a cylinder.

Advantages

Very low noise levels

Negligible pressure pulsations

Long service life

Suitable for special fluids

4-quadrant (fully bi-directional pump / motor) or

2-quadrant operation is possible

Low susceptibility to cavitation

Applications

Winches

Fork lift for high rack facility

Lift hydraulics with energy recovering

Fork lift trucks with energy recovering

Lifting Platforms

Drive for roller coasters

Metering Pump QXP

The QXP is an internal gear pump for metering isocyanates, polyols, additives and other fluids. Combined with a variable-speed drive, the QXP is being applied very successfully as a metering pump in the production of polyurethane.

Advantages

precision metering with very low pulsations, even at high pressures.

can be used with high and low viscosities, and with variable-speed drives

Applications

as a metering pump in the production of polyurethane

Internal gear pumps QXV (for low-viscosity fluids)

The QVX is an internal gear pump for low viscosity. It can develope pressures of 300 bar with high efficiency at viscosities of around 1 mm²/s. The QXV is beeing used with great success to pump aviation jet fuels, paraffin oil/kerosene, brake fluids, Pentosin and HFA fluids.

Advantages

Very low noise levels

300 bar can be developed

Outstanding efficiencies

Long service life

Low pump wear

Low sceptibility to cavitation

Good emergency running

Applications

Test rigs for diesel injektion nozzles

Test rigs for testing Jet A1/ fuel controllers for aircraft turbines

Rolling mills

Fuel pumps for gasturbines

Welding machines

Inbrication pump for spindle bearings

Motors

External gear motors, series APM212

The essential components of series APM212 external gear motors are an aluminium alloy body and two gearwheels supported by plain bearings. The front flange can be the SAE standard, or the British or German OEM patterns. Particular attention has been focussed on the design of the shaft seal, which is often affected by back-pressures

Advantages

High overall efficiency thanks to optimised hydraulic compensation

Optimum quality/price ratio

Customised models can be built for specific applications

Low maintenance requirements, even in heavy-duty operating conditions

Various components and accessories are available for radial/axial loads, integral anti-cavitation valve, etc.

Models

Unidirectional (model code APM)

Reversible (model code APMR)

With integral anti-cavitation valve

With outrigger bearing for axial and radial loads

Applications

Agricultural machines

Construction machinery

Winches

Harvesting machines

Hydraulic tools

Internal Gear Unit QXM

The QXM drive unit can be used in open- and closed-loop hydrostatic drives, and can operate both as a pump and as a motor. The QXM works as a pump to lift the load and it can recover energy when the load is being lowered.

Used as a bi-directional pump / motor (four-quadrant operation), the unit can control the complete motion cycle of a cylinder.

Advantages

Very low noise levels

Negligible pressure pulsations

Long service life

Suitable for special fluids

4-quadrant (fully bi-directional pump / motor) or

2-quadrant operation is possible

Low susceptibility to cavitation

Applications

Winches

Fork lift for high rack facility

Lift hydraulics with energy recovering

Fork lift trucks with energy recovering

Lifting Platforms

Drive for roller coasters

Internal-Gear Motor, Series QXM-HS

The QXM-HS (High Speed) internal-gear motor was developed specifically for use at extremely high speeds. Its first-rate efficiency and extremely low noise levels also make a significant contribution to reducing the costs of both energy and anti-noise measures.

Thanks to the special motor flange, adapted for such applications, and the integral ports for auxiliary functions, the motor can be used in many applications without needing any further modification.

Advantages

Particularly suitable for high speeds

Very low hydraulic and mechanical losses

Can carry high external radial loads

Low noise levels

Cost-savings in system design, assembly and maintenance

Models

Saw-drive motor in forestry harvesters

Fan drives in mobile machines

Internal Gear Motor QXM-Mobil

The QXM-Mobil internal gear motor was specifically developed for use in mobile applications. Its outstanding efficiency and extremely low noise levels also make a significant contribution to reducing the costs of both energy and anti-noise measures. The QXM design principle, featuring an integral outboard bearing, ensures top-class protection against leakage at the shaft seal.

Directional seat valves

Power units

Electro-Pumps ET

Bucher Hydraulics electro-pumps series ET are equipped with modern external gear pumps - AP05, AP100 and AP212 series together with efficient DC or AC electro-motors. These electro-pumps offer high volumetric efficiency and mechanical characteristics, good balancing and therefore reduced noise and vibration.

In Bucher Hydraulics ET project development, simplified architectures and reduced dimensions were the main goals to be achieved. For this purpose the housings of these pumps can be equipped with valves and hydraulics circuits.

We manufacture AC hydraulic power units for commercial and industrial applications. We offer a wide range of motors, reservoirs, manifolds and valve options. In addition to our standard products we are willing and capable of manufacturing AC Power Units to your exact specifications.

Hydraulic power packs, Series MT & T

We design and manufacture series MT & T AC hydraulic power units for industrial and commercial applications. These power units can be configured to create common circuits or systems that incorporate specialized and custom manifold designs.

System Capabilities

Flow rates from 0.25 gpm to 15 gpm, pressures to 4000 psi

Electric motors from 0.5 Hp to 20 Hp in several voltages and frequencies

To drive two proportional solenoids and one ON / OFF directional valve

Proportional amplifier ELSK 103-17

With one power output

To drive a proportional solenoid

Proportional amplifier ELSK 103-18

With one power output

To drive a proportional solenoid

Proportional amplifier ELSK 106

With one power output, switch ON / OFF and ramp

To drive one proportional solenoid, installed for example in instrument panel

Digital 3-level controller ELDR 105

With motor output for MTK../MTQ..

Position control

Analogue open-loop control unit ELMP 150-01

With two power outputs that vary according to the adjustable control signals and the external control signal

To drive two proportional solenoids (spread density and spread width) on salt/grit spreaders

Digital closed-loop controller ELMR 152-01

The ELMR 152-01** is a digital control unit, specially designed to suit any make of single-chamber salt spreader that is used in winter road maintenance operations. Basic functions are auger and belt speed, spinner speed and liquid pump. The system can be operated in “closed loop” or “open loop” modes, as well as in mixed mode

Inputs: 2 analogue, 4 frequency and 3 ON/OFF outputs

Outputs: 3 proportional and 6 ON/OFF outputs

Digital closed-loop controller ELMR 152-60

The ELMR 152-60*** is intended for single-chamber unit with proportional liquid pump. The liquid proportion from 0% to 100% can be selected with a step switch. The controller is also intended for the application as two-chamber unit with the facility for operating with blended materials

Inputs: 2 analogue, 5 frequency and 4 ON/OFF outputs

Outputs: 4 proportional and 6 ON/OFF outputs

Digital closed-loop controller ELMR 152-61

The ELMR 152-61*** is intended for single-chamber unit with proportional liquid pump. The liquid proportion from 0% to 100% can be selected with a step switch. The controller is also intended for the application as two-chamber unit with the facility for operating with blended materials

Inputs: 2 analogue, 5 frequency and 4 ON/OFF outputs

Outputs: 4 proportional and 6 ON/OFF outputs

Digital closed-loop controller ELMR 152-62

The ELMR 152-62*** is intended for single-chamber unit with proportional liquid pump. The liquid proportion from 0% to 100% can be selected with a step switch. The controller is also intended for the application as two-chamber unit with the facility for operating with blended materials

Inputs: 2 analogue, 5 frequency and 4 ON/OFF outputs

Outputs: 4 proportional and 6 ON/OFF outputs

Digital closed-loop controller ELMR 152-70

The ELMR 152-70*** is intended for single-chamber unit with proportional liquid pump. The liquid proportion from 0% to 100% can be selected with a step switch. The controller is also intended for the application as two-chamber unit with the facility for operating with blended materials

Swing-axle Cylinders

Swing-axle cylinders are used for locking the swing axle in mobile construction machines. Our swing-axle cylinders feature a strong and stable design with integral lock valves. Thanks to this compact design, complex routing of hydraulic lines is unnecessary. The cylinder can be controlled with just one line.

Applications

Construction machines

Harvesters

Stabiliser Cylinders

Stabiliser cylinders are safety-related components that are subjected to enormous loads. Our cylinders fulfil the exacting requirements relating to functionality, compact design, long service life and, of course, safety-related design.

Applications

Undercarriages of mobile excavators

Dozer-blade Cylinders

The dozer blade is an attachment on mobile excavators. The dozer blade is also used as a support to improve the stability of the excavator. Two hydraulic cylinders bring the blade into the support position. Integral check valves provide leak-free shut-off and offer pipe-rupture protection. In a similar manner, when the dozer blade is in the raised position a check valve prevents it from sinking.

Steering Cylinders

Our steering cylinders are used in the hydraulic steering system of various vehicles such as cargo/material handlers, for example. Thanks to our efficient manufacturing, you get an inexpensive, long-lasting product.

Applications

Vehicle steering systems

Brake Cylinders

Spring Actuators

Our spring actuators are mainly used in parking and service brake systems in a very wide variety of vehicle types. The active work is done by the integral compression spring and the brake is released hydraulically or pneumatically. The compression springs used are fatigue resistant and treated to ensure optimum corrosion protection.

Gripper Cylinders

Our gripper cylinders are used in two- and multi-tine grabs for material handlers. These cylinders feature the robust and fail-safe design that the harsh application requires. The piston rods used are induction hardened and, where needed, the cylinders are equipped with cushions.

Counterbalances

Hydraulic counterbalances are used in industrial robots. The job of the closed system is to counteract the axis load-moment sufficiently that the axis drive is not statically overloaded and can provide maximum torque for the acceleration of the axis. The function of the closed gas volume in the diaphragm accumulator is comparable to that of a mechanical spring.

Hydraulic Backstop Cylinders

Hydraulic backstop cylinders are used on lattice boom cranes as a hydraulic means for preventing the boom from toppling backwards. In the final position of the jib (almost vertical), the cylinder is forcibly in-stroked and thereby builds up the necessary pressure to push the jib back again. They are therefore Category A safety components. A cylinder failure would result in the crane overturning. To accommodate the enormous mechanical forces, our hydro-storage cylinders are manufactured exclusively from high-strength steels.

Stabiliser Cylinders

Mobile cranes are usually brought into their working position with four ground stabiliser cylinders. It is important to provide the greatest possible stability. The cylinders must be designed for high loads and shear forces. As is fitting for this application, we use high-strength materials and take care to ensure the greatest precision. The stability of the cylinder is ensured by incorporating leak-free lock valves in the head of the cylinder.

Applications

Mobile crane

System solutions

System Solutions for Towed Machines EPOM

Bucher Hydraulics is a very capable partner for electrohydraulic systems. Hydraulic and electronic components specially developed for use in towed machines are marked out by their reliability, despite variations in temperature, severe mechanical stresses and electromagnetic interference.
The EPOM range (Externally Propelled Off-Highway Machines) includes highly adaptable modular designs for all roles within the area of electro-hydraulic system solutions for towed machines, and it reflects more than 50 years of experience in this field.

Advantages

Sustained cost reductions and increases in performance ratings

Minimal unloaded and internal headlosses

Leak-free positioning functions

Component tank-line pressure ratings to 200 bar

Tried and tested components

Internal Gear Pumps for Variable Speed Drives

As a result of increased environmental awareness and growing competitiveness of rival drive technologies, the energy consumption and noise generation of plant and machinery have become decisive criteria. By using variable speed pumps, it is possible to create energy-efficient hydraulic drives.

Manifold blocks

In Systems Engineering, project methods are used to design client-specific solutions in the form of manifold control blocks. These are mainly used in mobile equipment for agriculture and municipal services, in road-building and construction machines, as well as in renewable energy systems such as wind turbines or solar power plants. The manifold blocks, in steel or aluminium design, offer maximum functionality in a very small space.

Monoblock designs

Valve combinations in monoblock construction consist of a single, heavy-duty, cast body that is designed for high working pressures. Thanks to the wide selections of spools, types of operators, types of hand levers, and auxiliary valves such as secondary pressure relief, anti-cavitation make-up, pressure control, flow control and check, these are particularly suited for use in complex applications where small installation dimensions are vitally important.

Stack-mounting designs

The combination of inlet, intermediate and outlet sections makes up a very adaptable building-block system whose elements are selected for the specific application and then assembled into a valve block. Various functions such as proportional flow control, downstream pressure compensation, anti-shock valves, anti-cavitation, seat valves, manual override, etc. enable wide application in mobile and industrial machines.

Horizontal-sectional valves and stacking assemblies

Application-specific control units are assembled using flange-mounting and sectional valves. Directional, pressure control, flow control and check valves can be combined in one valve block. These are widely used in mobile and industrial applications.

Applications

Our focus is on the customer ...From the very first idea to the ready to plug-in machine, we support our customers by providing specialist know-how and expertise.Bucher Hydraulics are setting standards in technology, quality, manufacturing, delivery performance, customer relations and service.It is our aim to develop customized and cost-effective solutions, that already exceed today's standards.

Construction equipment

From pipe-rupture valves or travel brake valves to complete system manifolds, Bucher Hydraulics develops tailor-made hydraulic drive and control systems for every excavator function.Every day, you and your customers can work with complete reliability and peace of mind.

Applications

Wheel Loader

Loader Backhoe

Telehandler

Excavator

Concrete Boom Truck

Mixers

Road building

Materials Handling

Materials handling equipment is powerful and economical thanks to tailor-made hydraulic control systems from Bucher Hydraulics.For over 50 years, our system designers have produced customized solutions for materials handling.

Applications

Reach Stacker

Mobile Cranes

Fork Lift Trucks

Skip Loaders

Material Handler

Lift Platforms and Lifting Frames

Boom Lifter

Industrial hydraulics

Manufacturers of hydraulic presses, plastic processing and pressure diecasting machines, waste compactors, and paper/textile machinery place particular importance on the low noise level and long service life of their products.Bucher Hydraulics kept these requirements in mind, especially when developing the range of internal gear pumps.

Applications

Injection Molding Maschine

Hydraulic presses

Waste compactors

Paper and textile machinery

Pressure diecasting machines

Door openers

Plastic processing machines

Power unit construction

Municipal equipment

Several problems can arise during the design and use of municipal equipment, problems that must be overcome.Bucher Hydraulics can draw on decades of experience in this field - we are always at the leading edge of the technology and we work out tailor-made solutions for the manufacturers of municipal vehicles.

Applications

Verge & Hedge Cutter

Wood Shredders / Chippers

Attachments and Drop-on Equipment

Winter Road Management

Ride-on Mowers

Fire-fighting Vehicles

Refuse Vehicles

Agricultural machines

Modern agricultural machines are at work day and night and their operators demand very high levels of reliability and flexibility, as well as ease of operation. Exceptional demands are placed on each link in the chain, including the hydraulic drive and control system.For over 50 years, Bucher Hydraulics has been partnering its customers to success.

Applications

Tractors

Sugar Beet Harvester

Three-Axle Trailer

Feeder Mixer

Seedling- and Plant-care

Muck Spreader

Seeding and Planting

Forestry Machines

Farm Loaders

Harvesters

Attachments and Towed Equipment

Other hydraulic applications

The interval between maintenance work in industrial and mobile machinery can be from five to as much as ten years - a challenge to the reliability and long service life of the hydraulic components installed in them. For exactly this reason, leading manufacturers have now been installing reliable products from Bucher Hydraulics for several decades.

Applications

Wind-power plants

Flight simulators

Tunnelling and mining equipment

Rescue equipment

Forestry equipment

Marine and offshore technology

Elevator Hydraulics

iValve – the intelligent and cost saving hydraulic solutionThe iValve is the response to two major trends: Diminishing hydraulic know-how on job sites and the increasing demand for remote management.

Your benefits:

up to 70 % less installation time

up to 30 % energy saving

highest level of safety

first-class ride quality

preventive maintenance (optional)

Valves

Electronically controlled lift valve

All Lift Control Valves by Bucher Hydraulics dispose of an integrated Hall-sensor - or feedback sensor - to measure and regulate their flow-rates electronically. This technology has been under constant development for 25 years and offers a very high travel comfort, even under extreme conditions.

iValveThe new intelligent valve that adjusts itself and is learning continuously.

VF-LRVBased on the original LRV-1, combined with a frequency convertor acting directly on the motor/pump unit, this drive offers even higher travel comfort, optimum heat dissipation and reduced noise emission.

Your advantages

For almost three decades, the following advantages have been appreciated by our customers worldwide:

Unequalled travel comfort independent of load and temperature

Highest performance at low energy cost

Low maintenance requirements, long life-cycles

Simple installation procedures

Low installation, maintenance and running costs

iValve

iValve – reduce the costs intelligentlyThe iValve is the revolutionary new development of Bucher Hydraulics. This valve contains all advantages of the approved LRV-1 and follows trends and changes in the hydraulic market. With the iValve, you are ready for the future!

Features and Advantages

up to 70 % less installation time

no more settings of hydraulic parameters required

iTeach is a self-teaching algorithm that provides the shortest travel curve autonomous

Electronical Controlled Lift Valve VF-LRV

This elevator valve with integral flow measuring system is used in frequency-controlled hydraulic drives. Based on the original LRV-1, combined with a frequency convertor acting directly on the motor/pump unit, it offers highest travel comfort, optimum heat dissipation and reduced noise emission.

VF-LRV technology is available only in combination with the power units of the Bucher Eco Line.

The New Safety Valve Against Unintended Car Movement DSV-A3

Safety valve (additional to the lift valve) to protect against unintended downward car movement as per EN 81-2:2010 (A3).

Advantages

Complies, together with appropriate door movement sensors and control system elements, with the requirements of the standard for a “means” of protection

Must be built into any new system after 2012

Type-examination certified by TÜV SÜD

Compatible with control valves from any manufacturer

incl. ball valve

Options

with electrical emergency lowering: 12 VDC or 24 VDC

withouth ball valve (for modernisations)

Appropriate control system

To the "means" the standard requires does not only the DSV-A3 belong, but a sensor unit that detects unintended movement of the car, and a controller that processes the signal and interrupts the power supply. Most manufacturers controllers meet the standards needs by now. You can contact them directly to this matter.

Comfort Line

The hydraulic power unit with the electronic iValve guarantees maximum ride comfort, independent of load and temperature. The many options available allow it to be used in a wide range of locations, from new buildings to modernisation.

The Comfort Line can be supplied for hydraulic elevators for any required total loads and travel heights up to 25 m.

Advantages:

Straightforward, compact design and construction

Optimised tank sizes, tailored to the floor area

Constant travel times, even with changes in load and temperature

Low energy costs

Wide operating temperature range

Short total travel time due to the short slow speed travel

In only a few cases does the oil need to be cooled

Down speeds can be increased by up to 50 % at no extra cost and without loss of comfort

Benefits for you:

Short commissioning time thanks to the "iTeach algorithm"

Outstanding travel characteristics in the widest possible range of conditions

Short set-up time

Freedom of planning for architects, thanks to flexible positioning of drive system

Eco Line

For new installations and for modernization, Eco Line guarantees maximum travel performance. The VF-ivalve electronic elevator valve solves problems of overheating, inadequate connected power size, or high noise levels.

Eco Line is the energy saving, variable frequency hydraulic drive system for elevators that are used up to 200 travels per hour – wihout oil cooling, and with the ultimate in ride comfort. Eco Line can be used for payloads up to around 6,600 lbs and travel heights up to 65 ft.

Variable-frquency technology:

Your investment in VVVF technology easily pays for itself.Thousands of Bucher Hydraulics VF drive systems have been in successful operation since 1998.

We will be pleased to calculate the possible energy- and cost-savings for an actual project!

Pluto MK-II

The 1:1 and 2:1 side-ram car frame kits are used in hydraulically powered passenger and freight elevators with load capacities up to a maximum of 1600 kg and a minimal shaft head of only 2550 mm and shaft pit of only 500 mm.The equipment consists of car frame, base unit set for the shaft pit, car buffers, guide rails, rail brackets, cylinder pillar and cylinder mountings, and - for 2:1 systems - guide pulley and ropes.

Application

Products

The following overview shows only some examples of the complete product range for hydraulic switch gear application.

solenoid-operated, 2/2-way seat-valve

solenoid-operated, 3/2-way seat-valve

hydraulic-operated 3/2-way seat-valve

actuator

hydraulic drive system

Please speak in concrete cases with our system specialists.

Dyna-Lift ®

Ergonomic, height-adjustable workbenches are quickly becoming the standard in industry. And as more people demand height-adjustability, Dyna-Lift ® is the standard for delivering it.

In addition to work tables, other common applications include hospital beds, assembly line fixtures, rehabilitation tables. Less conventional applications have included casket lifts, massage table lifts and lectern/podium lifts. We have developed Dyna-Lift ® applications for many light and heavy industrial and medical applications, including a successful product to help Boeing make the production of airplane wings height-adjustable for workers. Every customer has a special, unique need that they need Dyna-Lift ® to satisfy. That is why Bucher Hydraulics excels at timely response, outstanding research of our clients'' needs, engineering of the right applications and ultimately the best solution for each situation.